CANCEL
Missions
Badges
Crossed Kármán Line
This astronaut crossed the Kármán Line (100 km), the internationally accepted boundary of space.
Crewmates
122
Karol J. Bobko
3
MISSIONS
16.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
126
Frederick H. Hauck
3
MISSIONS
18.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
129
Norman E. Thagard
5
MISSIONS
140.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
137
Ulf Merbold
3
MISSIONS
49.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
141
Robert L. Stewart
2
MISSIONS
12
DAYS IN SPACE
2
SPACEWALKS
0.5
DAYS SPACEWALKING
149
George D. Nelson
3
MISSIONS
17.1
DAYS IN SPACE
2
SPACEWALKS
0.4
DAYS SPACEWALKING
152
Richard M. Mullane
3
MISSIONS
14.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
176
John O. Creighton
3
MISSIONS
16.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
186
Richard O. Covey
4
MISSIONS
26.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
187
John M. Lounge
3
MISSIONS
20.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
191
Ronald J. Grabe
4
MISSIONS
26.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
193
William A. Pailes
1
MISSIONS
4.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
237
John H. Casper
4
MISSIONS
34.4
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
238
Pierre J. Thuot
3
MISSIONS
27.3
DAYS IN SPACE
3
SPACEWALKS
0.7
DAYS SPACEWALKING
272
Stephen S. Oswald
3
MISSIONS
33.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
273
William F. Readdy
3
MISSIONS
28
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
274
Roberta Bondar
1
MISSIONS
8.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
David Carl Hilmers, M.D. is a former NASA astronaut. He was born in Clinton, Iowa, but considers DeWitt, Iowa, to be his hometown. His recreational interests include playing the piano, gardening, electronics, spending time with his family, and all types of sports. With five academic degrees, he is the second most formally educated U.S. astronaut, behind Story Musgrave with six.